南阳彩色小麦中微量硒的测定  

Determination of trace selenium content in Nanyang color wheat

作　　者：高向阳[1,2] 高遒竹 朱盈蕊[4] 王长青[2] 

机构地区：[1]郑州科技学院食品科学与工程系,河南郑州450064 [2]河南农业大学食品科学技术学院,河南郑州450002 [3]江南大学食品学院,江苏无锡214122 [4]郑州市质量技术监督检验测试中心,河南郑州450006

出　　处：《粮油食品科技》2015年第6期67-70,共4页Science and Technology of Cereals,Oils and Foods

基　　金：河南省科技攻关项目(JB02-0624430003)

摘　　要：为了研究小麦中微量元素硒的含量与分布,以南阳灰麦、硬质紫麦、普通紫麦、蓝麦为样品,以周麦16、偃展4110为对照,用微波快速消解,用分子荧光法分别测定了麦皮、麦仁和全麦粉中的微量硒。结果表明:硒的检出限为3.6×10^(-2)ng/mL,回收率为96.88%~104.23%。小麦全粉中硒含量为0.064 3~0.136 mg/kg,麦皮硒含量为0.100~0.155 mg/kg,麦仁硒含量为0.055 3~0.116 mg/kg。彩色小麦麦皮中硒含量大于两种普通小麦,普通紫麦硒含量最高,可作为人体日常补硒的膳食来源。Taking nanyang grey wheat and hard purple wheat, common purple wheat, blue wheat as the samples, zhoumail6 and yanzhan 4 110 as control group, the distribution and content of trace element selenium in wheat was digested by microwave; the trace element selenium in wheat skin, kernel and whole wheat flour were determined by molecular fluorescence. The results showed that the detection limit of selenium was 3.6 × 10-2 ng/mL, recovery was 96.88 - 104.23%. Selenium content was 0. 064 3 -0. 136 mg/kg in all wheat flour, 0. 100 -0. 155 mg/kg in wheat skin and 0.055 3 -0. 116 mg/kg in wheat kernel. Selenium content in the color wheat skin was more than that in two kinds of common wheat; seleni- um content was the highest in common purple wheat, which can be used as good dietary source of selenium for people.

关 键 词：小麦 硒 微波消解 分子荧光光度法 

分 类 号：S512.19[农业科学—作物学] O613.52[理学—无机化学]